• Species: Unguiculariopsis lettaui (Grummann) Coppins
• Remark:
• Fungus type: lichenicolous
• Treatment in Estonia: certain

• Species: Usnea articulata (L.) Hoffm.
• Remark: excluded as an erroneus record (no herbarium material)
• Fungus type: lichenized
• Treatment in Estonia: misidentification
• põis-habesamblik

• Species: Usnea barbata (L.) Weber ex F.H. Wigg.
• Remark: earlier under Usnea scabrata Nyl.
• Fungus type: lichenized
• Treatment in Estonia: certain
• kare habesamblik

• Species: Usnea chaetophora Stirt.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• hõre habesamblik

• Species: Usnea dasopoga (Ach.) Nyl.
• Remark: earlier under Usnea filipendula; includes Usnea diplotypus
• Fungus type: lichenized
• Treatment in Estonia: certain
• pikk habesamblik

• Species: Usnea diplotypus Vain.
• Remark: see: Usnea dasopoga
• Fungus type: lichenized
• Treatment in Estonia: included in other taxon
• narmas-habesamblik

• Species: Usnea filipendula Stirt.
• Remark: see: Usnea dasopoga
• Fungus type: lichenized
• Treatment in Estonia: synonym
• pikk habesamblik

• Species: Usnea fulvoreagens (Räsänen) Räsänen
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• värvuv habesamblik

• Species: Usnea glabrata (Ach.) Vain.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• sile habesamblik

• Species: Usnea glabrescens (Vain.) Vain.
• Remark:
• Fungus type: lichenized
• Treatment in Estonia: certain
• jäik habesamblik

• Species:
• Remark:
• Fungus type:
• Treatment in Estonia: